已知函数
……自然对数底数).
(1)当
时,求函数f(x)的单调区间;
(2)当
时,
(i)证明:
存在唯一的极值点:
(ii)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe3058c37b2af307a37688ad5b565075.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db8f867196410e2828e2bbd3183b02d.png)
(i)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(ii)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345719088bbb2714f2d603c399dc6c1c.png)
21-22高三下·天津和平·阶段练习 查看更多[5]
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更新时间:2022-05-31 07:27:49
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数
.
(1)判断函数
的单调性;
(2)设函数
,讨论当
时,函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02521e962b703211ec92cbd1519d50cf.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1c2660d172e4006f877fccf3533d3a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac54f19317a61b879e9cd16e020b97b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐2】已知函数
.
(1)若
是
的极值点,求函数
的单调性;
(2)在(1)的条件下,当
时,求
的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5364b5d303421b36bfdf7a871c2c8c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)在(1)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b008beb08962361a5e035b2989c4d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知函数
.
(1)当
时,求函数
的单调区间;
(2)求
的极值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7995f3bccd886ec57b74638a10049ac7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐2】已知函数
,
(1)设函数
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(2)对任意的
,存在
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的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756daf6530d08cbd995db14627ed3c73.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b71e91344f4dc33ab52d6160b2b601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec80634a6e2b2c85f845fa368b3a5969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e782457ec0edfb09c01da0c26ec6710e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c54705d32dc6820f1a90eec2225dcf.png)
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解答题-证明题
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适中
(0.65)
【推荐1】已知函数
.
(1)求
在
上的单调区间;
(2)当
时,求不等式
的解集;
(3)当
时,设函数
,求证:不等式
在定义域上恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfe9167e120af4f835236095e042666f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c33b69adc112831fa115b5dffdb616.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df14d3d99d593bc69694454c131adf68.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da32a6ba8178a0f2ca44cf4d0069b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d1963f4421366df75534b8339aaa67.png)
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解答题-证明题
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适中
(0.65)
【推荐2】设
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在
处的切线与
轴平行.
(1)求
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(2)证明:当
时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0995efedc18428aeb47a8b88acdae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1573b5dcfa2146d52d1b9e90e82adfcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55af79f99268222000b19d7ad43b25dd.png)
您最近一年使用:0次
解答题-证明题
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适中
(0.65)
名校
【推荐1】已知函数
.
(1)当
时,求函数
的零点个数.
(2)若关于
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,求实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf3cc88be800f35e58ed57f174bb61c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4d6625c8f79de1a94258a215e90b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3008053cbc94bcbf9f9986a592aca495.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐2】已知函数
.
(1)若
,当
时,证明:
.
(2)若
,证明:
恰有一个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/454a1d6d83fa3bd5e63eccd676fbfc84.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cfada8fd642ddf968bfd4228d48ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次